Apparatus for separating solids from liquids.



F. E. & A. s. ELMORE. APPARATUS FOR SEPAEATING SOLIDS FROM LIQUIDS.

APPLICATION 11.21) D130. 7. 190a.

91 9, 14,4, Patented Apr. 20, 1909.

2 SHEETS-SHEET 1.

A w/a F. E. & A. S. ELMOM APPARATUS FOR SEPARATING SOLIDS FROM LIQUIDS.

APPLICATION FILED DEC. 7. 190B.

Patented Apr. 20, 1909.

2 SHEETS-SHEET 2.

' flowing the.

. valve in the lower curately adjusting the'pro ortion' of-1iquid*UNITED STATES PATENT OFFICE.

FRANGJB'EDWARD ELMORE AND ALEXANDER STANLEY ELMORE, or LONDON, ENGLAND.

arranarus non snPARA'rING SOLIDS r nom mourns.

I? 89. 819,144. r Specification To all whom it concern: f

Be it 'knownf t l iat we, FRANCIS EDWARD Emronn and ALEXANDER STANLEYEmronn, both subjects of the King of Great Britain, both resldin at 4Broad Street Place, in .tlie city of don England, electrometal- 1m:'sts', have jointly invented certain new emf useful lm rovements in A'paratus for Separating So 'ds from Liqui s, of which the following" is aspecification.

A well known method of more or less completely separating 'more or lessfinely divided solid matter from a li uid consists in runnin the mixtureinto allownwardly coned ta such as is known in mining parlance as aspitzkasten. The solid matter or part of it collects in the lower partof the tank, the more or less clarified liquid overor -"the tank into agutter; from time to time a spigot, cock or part of the tank is openedby hand or automatically and the solid matter or'a portion thereofallowed to flow out togetherwith a certain quantity of the liquid,v inworkmg such apparatus difficulties arise owing to absence of means foracescaping with the solid, an to the tendency for the solid matter topack, so that when of the material the cock, valve crspigot is. openedno flow occurs th it. Our invention relates to improvements in apparatusof this kind in which there are two valves at the bottom of the vessel,the

space hetweenthem forming a chamber.

According to our invention in order that the opening f timed "to procurethe water to solid matter, the valves are mechanically, operated by asuitable gear. If the upper; valve opensinwardly into the tank itsmovement will agitate the solid matter sufiiciently to counteract theeffect of packing. A g

In the preferred form of the apparatus the tank 1s open at 'its pointand into the opening is screwed or o herwise fixed a rated by means ochamber of any suitable form and dimensions. At or near the upper end ofthischamber is a seatin for a valve which is o or Letters; Patent. IApplication and December 7 1908. Serial No. 466,855.

the valves may be suitably, proportion of arod attached to it andPatented April 20, 1909.

extending to the top of the tank. At or near the lower end of thechamber there is a seating for another valve. These valves are openedalternately, preferably by means of lovers operated by cams on rotatingshafts or a rotating shaft. It is generally advisable that there shouldbe an air vent from the chamber, and this may conven iently be providedby perforating the top valve and screwing into the perforation a pigewhich plays the part of the aforesaid ro If the pipe to the top valve bemade of suihc'iently large diameter the bottom valve may be operated bya rod extending through the said pipe. .In some cases it may be foundnecessary or advisable to make the pointed tank of such diameterinrelation to its depth that the angle formed by the sides and bottombecomes too flat to enable the settled solid matter to slide to thepoint whole the valve chamber has been fixed. In such caseswe providethe tank with slowly moving arms or rakesof suitable shape gradually todraw or collect the settled solid matter-without unduly disturbing it ina manner similar to that in which like rakes or arms have been used inknown apparatus, to the point where the valve some cases, such, forinstance, as the tank being of large dimensions it becomes necessary tosupport the moving arms at their outer ends. We prefer to-do this byattaching the outer ends of the arms or rakes to Wheels running on atrack placed in such a position as'to prevent the solid matters settlingupon tank may conveniently be used for this purp -f Inasmuch as it maybearranged that at each filling and emptying of the chamber the quantityof solid and liquid discharged 18 the same, the apparatus. may be usedfor measuring the material.-

so chamber is situated. In

it. The overflow lip of the '95 Furthermore, the

apparatus serves also for. supplyin the mixture of solid and liquiduniformly from a tank which itselfreceives a varying quantity of themixture. 7

he accompanying -d rawing h illustrate the invention. 1

Figure l is an elevation partly in section of a comparatively deep tankhaving the double valve, Fig. 2 is a vertical section through a shallowtank having revolving arms for collecting the solid matter and Figs. 3*6are detail views drawn to an enlarged scale.

Referring to Figs. 1, 3, 4, and 6 the point of the tank is open and isfitted with a short tlanged pipe a to which is fixed the flanged mouthof a chambered receptacle 3) open at its lower end where there is aseating for a valve 0. The upper end of the short pipe a forms a seatfor a valve d, the stem of which is a pipe 6 extending to the top of thetank where its upper end is fixed to a stirrup f the hollow stem f ofwhich is guided in a bracket 9 fixed above the tank.

The stem ii of the valve 0 isa rod extending through the pipe 1; andfixed at its upper end to a stirrup i situated within the stirrup f andhaving a stem 2" which extends through the hollow stem f. A helicalspring 7;: surrounds the upper end of stem 2'.

and bears at its lower end against the flanged end of stem f and at itsupper end against a collar on the stem 21'.

Extending through stirrups f and dis a shaft Z supported by bracket (1and suitably driven. On this shaft is keyed a cam Z (Fig. 6) broadenough to extend through stirrup j. The stirrups and 2' are so shapedthat as the cam revolves it alternately lifts stirrup f, compressingspring- 70, and depresses stirrup 2', again compressing spring is. Inthis manner valves 0 and (Z are alternately opened by the cam and closedby the spring. The shaft'l carries two pulleys m a of differentdiameters which can be driven, respectively, by a belt from pulleys 0and 79 fast to the shaft which may be driven by any suitable motor. Thisear permits of the rotation of the cam Z at either of two speedsaccording to the interval which has to elapse between successiveoperations of the valves 0 and d.

Referring to Fig. 2, the curved arms m are fixed to a vertical shaft nmounted to turn in suitable bearings and, if necessary, hollow to admitvalve stems extending through it. The outer ends of the blades arebolted to a ring 0, suspended by hang ers 72 from wheels 9 adapted torun on the upper edge of the tank.

Having thus described the nature of this,

invention and the best means We know of (-arrying'the same intopractical effect, we claim 1. Apparatus for separating subdivided solidmatter from a liquid comprising a downwardly coned' vessel, a receptacleat the bottom of said vessel arranged to receive solid matter whichsettles in such vessel and having an inlet opening and a dischargeopening, a lift valve at the apex of said coned vessel adapted to closethe said: inlet opening and operable to open inwardly into the bottom ofsaid vessel, 2. lift valve adapted to close the said discharge opening,and power dri en meehanism for operating the said valves to open themalternately at a rate of speed sutficient to maintain the pulp at theapexof the conedivessel in a state of agitation.

2. Apparatus for separating subdivided solid matter from a liquidcomprising -a lownwardly coned vessel, a chambered receptacle at thebottom of said vessel adapted to receive solid matter which settles inthe receptacle and having an inlet opening and a discharge opening, alift valve at the apex of said coned vessel adapted to close the saidinlet opening and mounted to open inwardly into the apex portion of saidWas sel, a lift valve adapted to close the said dis-- charge opening,power driven mechanism for operating the said valves to open themalternately at a rate adapted to maintain the pulp at the apex of saidconed vessel in agitation, and means whereby the interval of timebetween the successive operations of the said valves may be varied.

2-}. Apparatus for separating subdivided through the first-named stem, astirrup ter-' minating the first-named stem, a stirrup terminating thesecond-named stem and adapted to slide within the first-named stirrup, apower driven shaft extending through both stirrups, a cam on the saidshaft adapted to engage each stirrup alternately so as to depress theinner stirrup and raise the outer stirrup, a spring adapted tobecompressed whenever the cam is operative, and gearin whereby the speedof the power driven shaft may be varied.

4. Apparatus for separating subdivided solid matter from a liquidcomprising a downwardly coned vessel, a receptacle at the bottom of thevessel adapted to receive solid matter which settles in the vessel, andhaving an inlet opening and a discharge opening, a lift-valve adapted toclose the said inlet opening, a lift-valve adapted to close the saiddischarge opening, power driven mechanism for opening the said valvesalternately, means whereby the interval of timebetween the successiveoperations adapted to travel over the bottom of the vesnames to thisspecification in the presence of sel so as to move the deposited solidmatter two subscribing Witnesses. toward the said inlet opening, a trackon the T upper portion of the vessel, out of range of PE the solidmatter, a frame supporting the h l i 0 scraper arms, and Wheels mountedupon \Vitness'es: said frame and operating on the saidtraok. JOSEPHDIILLARD,

In testimony whereof We have signed our 1 W. J (SKERTEN.

